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RELIABILITY ANALYSIS METHOD OF SLOPE STABILITY
Author(s): 
Pages: 7-14
Year: Issue:  4
Journal: COASTAL ENGINEERING

Keyword:  边坡整体稳定性Bishop圆弧滑动法可靠性分析可靠性指标海洋石油勘探与开发前景展望;
Abstract: 边坡整体滑动稳定性的可靠性分析是建立在土体具有的抗力大于荷载效应的概率基础上进行设计和校验的.在条分法的基础上推导出了进行边坡稳定可靠性分析的统一极限状态方程,将土的容重γ、内摩擦角ψ、粘聚力c作为随机变量,当其为非正态分布时,进行当量正态化,考虑变量相关的情况,用简化相关法对随机变量进行统计分析,并以Bishop圆弧滑动法为例,用JC法求解边坡的可靠性指标及失效概率,给出计算安全系数和可靠性指标的算法程序.并就影响可靠性指标的因素如抗剪强度指标、变量分布形式、土性参数的变异性等进行了讨论.
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